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Message-Id: <20231018141323.1334898-9-sashal@kernel.org>
Date: Wed, 18 Oct 2023 10:13:11 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: WhaleChang <whalechang@...gle.com>, Takashi Iwai <tiwai@...e.de>,
Sasha Levin <sashal@...nel.org>, perex@...ex.cz,
tiwai@...e.com, jussi@...arnerd.net, aichao@...inos.cn,
john@...ping.me.uk, ltyl@...-e.com, alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 6.1 09/19] ALSA: usb-audio: Fix microphone sound on Opencomm2 Headset
From: WhaleChang <whalechang@...gle.com>
[ Upstream commit 6a83d6f3bb3c329a73e3483651fb77b78bac1878 ]
When a Opencomm2 Headset is connected to a Bluetooth USB dongle,
the audio playback functions properly, but the microphone does not work.
In the dmesg logs, there are messages indicating that the init_pitch
function fails when the capture process begins.
The microphone only functions when the ep pitch control is not set.
Toggling the pitch control off bypasses the init_piatch function
and allows the microphone to work.
Signed-off-by: WhaleChang <whalechang@...gle.com>
Link: https://lore.kernel.org/r/20231006044852.4181022-1-whalechang@google.com
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/usb/quirks.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 4667d543f7481..80ee3b54bfe9c 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1992,7 +1992,11 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
/* mic works only when ep packet size is set to wMaxPacketSize */
fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
break;
-
+ case USB_ID(0x3511, 0x2b1e): /* Opencomm2 UC USB Bluetooth dongle */
+ /* mic works only when ep pitch control is not set */
+ if (stream == SNDRV_PCM_STREAM_CAPTURE)
+ fp->attributes &= ~UAC_EP_CS_ATTR_PITCH_CONTROL;
+ break;
}
}
--
2.40.1
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